MPEG：運動圖像專家組 (MPEG: Moving Picture Experts Group)

MPEG is an abbreviation of Moving Picture Experts Group. It is a working group of authorities that is founded to establish standards for audio and video compression and transmission. The audio-video file formats are built up by MPEG, which are also known as MPEG files. This group of experts is created by the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC). It has delivered a variety of versions of the file (standards) namely MPEG-1, MPEG-2, MPEG-3, MPEG-4, MPEG-7, MPEG-21, etc.

MPEG是“運動圖像專家組”的縮寫 。 它是權威機構的工作組，旨在建立音頻和視頻壓縮和傳輸的標準。 音頻視頻文件格式是由MPEG建立的，也稱為MPEG文件 。 該專家組是由國際標準化組織(ISO)和國際電工委員會(IEC)創建的。 它提供了多種版本的文件(標準)，即MPEG-1，MPEG-2，MPEG-3，MPEG-4，MPEG-7，MPEG-21等。

Image source: https://commons.wikimedia.org/wiki/File:Mpeg_logo.svg

圖片來源：https://commons.wikimedia.org/wiki/File:Mpeg_logo.svg

The standard of MPEG is an order of arrangement for compressed audio and video files. It is developed and designed for storing video on Digital Audio Tapes (DAT) and audio files on standard audio Compact Disc (CD). The MPEG file has ".mpeg" as a file extension. In the earlier period, the MPEG files requisites hardware decoder for storing and playback but in the present day, it needs software-only codecs.

MPEG的標準是壓縮音頻和視頻文件的排列順序。 它是為將視頻存儲在數字音頻磁帶(DAT)上以及將音頻文件存儲在標準音頻光盤(CD)上而開發和設計的。 MPEG文件具有“ .mpeg”作為文件擴展名。 在早期，MPEG文件需要用于存儲和回放的硬件解碼器，但是在今天，它需要純軟件編解碼器。

• In January 1988, MPEG was founded by the proposal and assistance of Leonardo Chiariglione and Hiroshi Yasuda.

  1988年1月，在Leonardo Chiariglione和Yasuda Hiroshi的提議和幫助下成立了MPEG。

• In May 1988, its first meeting was held in Ottawa, Canada.

  1988年5月，其第一次會議在加拿大渥太華舉行。

• Since, 1988, it has created a variety of standards that facilitated industry in providing users more pleasing and enjoyable digital media experience.

  自1988年以來，它創建了各種標準，促進了行業向用戶提供更令人愉悅和愉悅的數字媒體體驗。

• More than the years, since its beginning of foundation, it has grown and developed into a full-fledged huge ISO working group.

  自成立以來，多年來，它已經成長為一個功能強大的大型ISO工作組。

MPEG的工作 (Working of MPEG)

• The data is compressed by the MPEG algorithm to small bits.

  數據通過MPEG算法壓縮為小比特。

• These small bits can be effortlessly transmitted and decompressed and then the video is encoded through a method called Discrete Cosine Transform (DCT).

  可以毫不費力地傳輸和解壓縮這些小比特，然后通過稱為離散余弦變換(DCT)的方法對視頻進行編碼。

• The rate of compression is extremely soaring of MPEG as it stores only the changes that take place from one frame to another frame.

  MPEG的壓縮率非常高，因為它僅存儲從一幀到另一幀發生的變化。

• MPEG does not store the entire frame that enables it to trim down the size of the complete file.

  MPEG不會存儲整個幀，因此無法縮小整個文件的大小。

Following are the steps followed by MPEG commonly to develop, grow and establish a standard:

MPEG通常遵循以下步驟來開發，發展和建立標準：

• Discover and categorize the requirements of a standard

  發現和分類標準的要求

• Bring together the requirements

  匯集需求

• Call for proposals

  征求提議

• Evaluate and assess the proposals

  評估和評估提案

• Technical development

  技術發展

翻譯自: https://www.includehelp.com/dictionary/mpeg-full-form.aspx

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